Allow the PositionBar, with WC2 support required by
interface, to be toggled at runtime and also optionally
controlled from within the .slashmrc config file by
patch for 0.0.7E6F2 already on my patches page
although I suspect my specific implementation might be
up for debate as the patch simply addes another #define.
If this is to be emersed permanently I think it should
just far within the scope of the POSITIONBAR #define